Machine for making hollow receptacles



M. D. BARON.

MACHINE FOR MAKING HOLLOW RECEPTACLES.

APPLICATION HLED DEC. 30,1919.

Patented Nov. 9, 1920.

3 SHEETS-SHEET l- M. D. BARON.

MACHINE FOR MAKING HOLLOW BECEPTACLES.

n rucmou man 050. so. 1919.

1 ,358,6 10. Patented Nov. 9, 1920.

3 SHEETS-SHEET 2.

M. D. BARON. MACHINE FOR MAKING HOLLOW RECEPTAGLES. APPucmoM nuzo DEC.30. ms.

1,358,6 10. ate ted Nov. 9, 1920.

3 SHEETS-SHEET 3.

anucnto'o 1% Guam,

UNITED STATES PATENT OFFICE.

MAX D. BARON, OF NEW YORK, N. Y., ASSIGNOR TO WHITTEMAN BROTHERS, 0F BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

MACHINE FOR MAKING HOLLOW BEOEP'IACLES.

Specification of Letters Patent.

Patented Nov. 9, 1920.

Application filed December 30, 1919. Serial No. 348,298.

:"0 all whom it may concern:

llc it known that 1. MAX D. BARON, a citizen of the United States, residing in the city. of New York, borough of Manhattan, count and btate of New York, have invented a certain new and useful Machine for sifting Hollow Receptacles, of which i! :1' iolhnving is a specification.

his invention is a machine for making hollow receptacles, although it is particui;..vi adapted for the making of barrels or th iike through the Winding of successive plies of paper about a mandrel to form the barrel.

fs achincs for making hollow receptacles i'or the wrapping of successive plies of paper have been heretofore suggested and iLAHJllB. embody a pair of mandrel sections which are rotated for the purpose of wrapping the paper thereon. In the operation oi such machines, the paper is fed in the form of a strip on to the mandrel sections and a. knife cooperates with the strip to separate it along its medial line for a portion of the operation for the purpose of forming the two opposite ends of the barrel which are finally united through the withdrawing of the knife and the winding of the strip intact. As a first step in the operation. the paper is split and the mandrel sections rotate While in substantial engagement with one another for the purpose of initially forming the chimes at the end of the barrel, through a successive number of plies of the". paper directly overlying one another. When the chimes are finished, the machine is constituted to slowly separate the mandrel sections, while the winding and slitting of the paper continues, with the result that the paper sections are wound in with helical bilge of opposite pitch to formthe body of the barrel. The separating and simultaneous rotation of the maindrel sections continue until the two barrel sections collectively form aii balfill of the desired height, whereupon further separating movement of the mandrel sections ceases, the knife is moved freedfirom contact with the paper and the bilge of the barrel is wound. The machine is now stopped, the paper strip cut off, and the barrel is now finished, in position on the mandrel section. In order that the barrel may be removed from the machine, it is of course necessary to free it from the mandrel sections and these sections are made collapsible so as to loosen the barrel from the mandrel sections.

However, as these barrel making machines have been heretofore constructed, the mandrel sections are carried on and actuated by shafts which extend from opposite directions and before the finished barrel can be removed, it is necessary to start up the machine again and run the mandrel sections idly, until they are retracted a further distance apart to allow the barrel to drop between them. As soon as the sections are retracted to this additional distance the machine is stopped and the barrel removed and the machine thereupon started again to bring the mandrel sections back into substantial adjacent positions, whereupon the machine is again stopped and the paper attached to the mandrel sections for the startin; of a new barrel.

in practice, it takes a relatively short time to wrap a barrel, but considerable time is lost in freeing the barrel from the mandrel sections through the said additional movement of the mandrel. sections required for this purpose, and with this practical disadvantage in mind, the object of the present invention is to provide a machine Wherein said additional movement of the mandrel sections is not required for the removal of the barrel. In the machine of the present invention, the barrel can be removed from the mandrel sections as soon as it is completed and without further retracting movement of the mandrel sections. fact, the structure may be so organized that the barrel may be finished, the mandrelsections released and the barrel removed in that short period of time While the mandrel 58- tions are moving toward one another for the starting of a new barrel. By such .a construction, a great time saving results and the eiliciency and output for a given pe iod is greatly increased.

A. further ObJBCl; of the invention is the marked sim lification of construction of the operating evices of the machine and a novel combination of such operating elements which renders the machine practically automatic and continuous in its operations.

Features of the invention, other than those specified will be apparent from the hereina te d i d pe slap n conjunction with the accompanying drawmgs.

In the accompanying drawings I have illustrated different practical embodiments of the invention, but the construction therein shown is to be understood as illustrative only, and not as defining the limits of the invention.

Figure 1 is a plan view of a machine embodying the present invention showing the same partly in section in the interest of clearness;

Fig. 2 is a section on the line 22 of F ig. 1;

ig. 3 is a side elevation of the rear end of the machine;

Fig. 4 is a diagrammatic perspective view showing certain clutch operating mecha nism which may be employed; and

Fig. 5 is a central section through a hol low container which is one of the products of the machine.

Referring to the drawings 1 designates a frame or bed of the machine on which is superimposed a plurality of standards 2, 3 and 4. A pair of mandrel sections .3 and 6, which collectively constitute the mandrel of the machine, are respectively fixed on coaxial shafts 7 and 8. The shaft 8 is a hollow shaft provided interiorly with a helical worm, but has a smooth exterior, whereby it is adapted for simultaneous rotary and longitudinal movement in a bearing 9 on the standard 2. The mandrel section 5 is fixed to the forward end of the shaft 7 which, as stated, is co-axial to the shaft 8. The shaft 7 extends through the hollow shaft 8 and is supported for simultaneous rotary and sliding movement on the standard 3 and a bearing 11 on the standard 4. A filler ring 12 is positioned in the forward end of the shaft 8 embraces the shaft 7 and serves as a bearing to support the forward portion of the latter shaft for sliding move ment relative to the shaft 8.

It will be noted that between the shaft 7 and the bearing 10 is interposed a sleeve 13, in which the shaft is rotatably and slidably journaled, but said sleeve is precluded from longitudinal movement by means of gears 14 and 15 which are fixed on the sleeve 13 at either side of the bearing 10. In a somewhat similar manner, the shaft 7is mounted in bearing 11 to an intermediate sleeve 16 which is free torotate in the bearing 11 but is precluded from longitudinal movement therein by an end collar 17 and a gear 18 at its other end. The shaft 7 is further rovided with a keyway 19 by means of w ich it is keyed to the sleeve 16 for sliding movement relative thereto, and for rotary movement therewith. The shafts 7 and 8 are keyed together at their forward ends by a keyway 20 and both the keyways 19 and 20 are ma'de long so as to allow of relative lonitudinal movements of the shafts 7 and 8 in opposite directions. Thus, the shaft 8 is made rotatable and slidable relative to the standard 2, and the shaft 7 is both rotatable and slidable with reference to both the standards 3 and 4.

The shaft 7 is provided for a portion of its length intermediate its ends with a helical worm 21 and the sleeve 13 projects forwardly from the standard 3 into the space between the interior of the hollow shaft 8 and the exterior of the solid shaft 7 and is provided exteriorly and interiorly with heli cal worm convolutions. The interior convr lutions conform to and cooperate with the worm 21 of the shaft 7, while the exterior convolutions conform to and cooperate with the interior convolutions of the shaft a Throu 'h the simultaneous rotation of the shafts? and 8 at a predetermined speed and a time rotation of the sleeve 13 at the sanitor a different speed in the same or opposite direction, the mandrel sections 5 and (I may be caused to rotate without relative edgewise movement or to simultaneously rotate and move toward or away from one another, by the employment of mechanism next to be described.

Journaled for rotation in the standards 2. 3 and 4 is a drive shaft 22 to which rotation is imparted by any suitable means such as a drive pulley 23, driving said shaft through the usual friction clutch 44. Loose 0n the shaft 22 adjacent each of the opposite faces of the standard 3 are gears 24 and 25 which normally run free on the shaft 22 but may be driven therefrom through the throwin in of clutches 26 and 27 respec' tivcly. The gear 25 meshes directly with the gear 15 on the sleeve 13 but between the gear 24 and the gear 14 is an intermediate gear 28. Thus when the clutch 27 is thrown in, the gear 25 will rotate the sleeve 13, in one direction whereas. when the clutch 26 is thrown in the gears 24, 28 and 14 will retate the sleeve in the opposite direction. The shafts 7 and 8 are rotated independently of the gears 24 and 25 through a gear 29 fixed on the shaft 22 and meshing with the gear 18 on the sleeve 16 which is keyed to the shaft 7. The sleeve 13 may be driven independently of the gears 24 and 25 from the shaft 7 by means of a clutch 30 which is keyed on the shaft 7 and cooperates with the rear end of the sleeve 13.

It is essential to the operations of the ma chine that the clutches 26. 27 and 30 be so controlled that they are thrown in and out at proper times to bring about the desired manipulation of the mandrel sections 5 and 6 and. in practice, this operation of the clutches may he made entirely automatic by any suitable mechanism. one illustrativ form thereof being shown diagrammatically in Fig. 4, and associatedwith the ma hine in Figs. 2 and 3. The timing of the clutch "operating mechanism must he in synchronism with the operations of the shaft 7, and, in the form of the invention shown, this mechanism is actuated from a cam 31 formed on the collar 17 of the sleeve 16, which as stated, is rotatable with the shaft 7. The cam 31 has a follower 32 carried by a push rod about which a spring 34 is coiled and serves to maintain the follower in engagement with the cam. The lower end of the push rod 33 carries a spring pressed. pawl 35 which serves to drive a ratchet wheel 36. The ratchet wheel 36 is mounted on a shaft 37 and on this shaft is fixed a. plurality of sprocket wheels 38 over each of which is looped a sprocket chain. These sprocket chains are shown as four in number and bear the reference numerals 40, 41, 42 and 43. The chain 40 has a function of controlling the friction clutch i l, the chain 41 controls the clutch 27, the chain 42 controls the clutch 26 and the chain 43 manipulates the clutch 30.

Associated with each chain are suitable connections to the respective clutches. For example, the lever 45 is pivoted at 46 and is provided at one end with a yoke 47 shaped to engage the clutch 30, while its other end projects into a position adjacent the sprocket chain 43. A spring 49 normally holds the free end of the lever e5 in engagement with the sprocket chain as shown in Fig. 2 and holds the clutch 30 in a retracted idle position. The chain 43, however, is provided with certain high links 48, of which there may be one or more and as these hi 'h links come into engagement with the end of the lever, they tilt it against the action of the spring 49 and throw in the clutch with the result that the sleeve 13 will be driven directly from the shaft 7. The machine is organized so that the high links will remain under the lever end for a predetermined period but upon the passage of these links free from engagement with the lever, the spring 49 will tilt the lever back and throw out the clutch. The chain is so constructed, in practice, that the high links may be rcgir lated to different parts of the chain so that the times of operations of the lutch can be properly synchronized with the remaining operations of the machine. The mechanism for actuating the remaining ClllilzfllQS is the same in principle as that described with reference t0 theclutch 30 although the connections are slightly different for the reasons which will be manifest. It is not thought necessary to describe each connection in detail as it is clearly shown in Fig. 4 and this operation-will be manifest to those skilled in the art. When it is understood that no two clutches are thrown in at the same time since all of them serve to operate the sleeve 13, thei'r functinns are to operate this sleeve at difi'erent speeds and in different directions, for the reasons hereinafter clearly described in setting forth the operation of the machine.

Associated with the base of the machine and laterally oi the mandrel when in the position of Fig. l is suitable web feeding mechanism and adhesive applying mechanism 50 emliiodying a. suitable cutting kniic 51, all of which mechanism operates in the manner presently described and in view of the fact that this paper manipulating mech anism forms no part of the present invention and is old and well known, a detail deseription thereof would serve no purpose.

It may also be stated here that 1n practici each of the mandrel sections 5 and (l is preferably made collapsible for reasons well known to those skilled in the art, but as this feature is broadly old and well known we have not undertaken to specifically show the details of such collapsible mandrel sections. Any form of collapsible mandrel seition may be employed on the machine of this invention. The invention is not directed to the paper manipulating means nor to any specific type of mandrel section, but is directed to an improved and efficient inannel' of supporting and manipulating the mandrel sections in the carrying out of their fun tions. The operation of the machine in making a hollow container will now be de scribed.

The normal position of the parts for the starting of a container is as shown in Fig. l with all (it the clutches retracted and the drive pulleys 23 running idly on the shaft 359. 'lhrwpapcr web (not shown) is fed from the paper feeding mechanism 50 and secured to the mandrel, sec! ions 3 and (i in any suitable way. the knife or cutter 51 is placed in cutting relation to the paper to slit it longitudinally along its medial line whereupon the chain 40 is timed to actuate the clutch n for the purpose of making the pulley 23 fast on shaft 22. The shaft 32 commences to rotate and drives the shaft 7 through the gears 29 and 18, simultaneously with the throwing in oi the clutch l l. aiul the chain throws in the clutch 30 with the result that the sleeve. is locked ti ghtl to the sl aft 7 and :oth the sleeve and the shaft 7 are driven through the gear 18. he stated. the shai't S is key d to the shalt T flirough a key or kcyway 20, so that the shaft 8 rotates together with the shaft 7. The mandrel sections start to turn and wrap the paper web, feed from the paper feeding mechanism .70. upon the mandrel sections. the knife 51 meanwhile slitting the paper as described. The parts continue to operate for a. predetermined period during which the chimes 2 of the barrel shown in Fig. 5, are wrapped by superimposing a number of "consecutive plies of paper on one another,

while the mandrel sections are rotated without relative co-axial movement. During the winding of the chimes, the clutch 44 and the clutch 30 have been thrown in through the engagement of high links 48 on their respective operating chains, but at a predetermined time when the chimes are completed, the high links 48 pass from under the end of the clutch lever 45, with the re sult that the clutch 30 is thrown out and immediately thereafter, and almost simultaneously with this operation, the clutch 27 is thrown in. Through the disengagement of the clutch 30, the threaded sleeve 13 is no longer driven from the shaft 7, but when the clutch 27 is thrown in, this sleeve driven through the gears and 15 from the shaft 22, and this gearing is so proportioned, in the form of the invention shown that it will drive the threaded or screw sleeve .13 at a slower speed than that of the shafts 7 and 8, in the same direction. As a result of the shaft 8 revolving faster than the screw sleeve 13, it is caused to be retracted on said sleeve and move in a direction to the right in Fig. l, and in a like manner the shaft 7 is thrust forwardly at the same speed in an opposite direction, for the reason that the pitch of all of the threads is the same but of opposite hand. The mandrel sections move apart at a greater or lesser speed depending entirely upon the proportioning of the gearing l5 and and in practice this gearing is made removable so that different gears may be placed on the machine depending entirely upon the pitch of the convolutions desired in the barrel since manifestly the wrapping of the paper while it is being cut on mandrel sections which are slowly moving apart will cause the paper strips to be wrapped in a helical path after the manner shown in Fig. The faster the mandrel sections move apart with relation to their speed of rotation just so much greater will'be the pitch of the helical convolutions of the paper stripswhereas if the speed of the screw sleeve 13 is decreased the pitch of such convolutions will be correspondingly decreased.

The machine continues to function with the clutch 30 retracted and the clutch 27 thrown in until the proper length barrel has been formed, whereupon the clutch 27 is retracted and the clutch 30 again thrown in, while the clutch 26 is in neutral. As a result of this clutch movement, the threaded sleeve 13 is zwain driven direct from the shaft 7, and further retracting movement between the mandrel sections 5 and 6 ceases and the paper strips begin to wind straight and without a helical configuration.

The cutter 51 is now disengaged from the paper strip and the central bilge portion 53 of the barrel is wrapped. At the con clusion of the wrapping of the portion 53,the

clutch 30 is released and if an automatic arrangement is provided for collapsing the mandrel sections without stopping the machine, the clutch 26 may be immediately thrown in. However, if the mechanism for collapsing the mandrel sections requires the stopping of the machine. then the clutch 44 is thrown out simultaneously with the throwing out of the clutch 30, and the mandrel sections come to a full stop. The paper strip is now out off from the paper feed mechanism 50 and the mandrel sections 5 and 6 collapse to allow of the removal of the completed barrel. therefrom, whereupon, without further movement of the mandrel sections the barrel may he slid off the mandrel sections in a direction to the left in Fig. 1. However, after the mandrel sections have been collapsed and the paper cut, the machine may be immediately started no again by throwing in the clutch 44 which through the reversing gear 28 returns the mandrel sections 5 and 6 to their adjacent position shown in Fig. 1 and the barrel may be removed from the mandrel during its return movement if desired, so that not the slightest loss of time through idle movement of the mandrel sections results.

If the mandrel sections are constructed to be collapsed without stopping the machine, the throwing out of the clutch 44 would be entirely unnecessary and the clutch 26 could be thrown in as soon as the clutch 30 is thrown out, the barrel being removed while the sections 5 and 6 are coming together for the start of another barrel. These different ways of operating the machine may be readily carried out b those skilled in the art by simply changing the positions of the high links on the chains 40-43 which are the basis of the controlling mechanism of the clutches.

hen the mandrel sections 5 and 6 have been retracted to the positions in which they are shown in Fig. 1, the clutch 44 is automatically thrown out, the machine stops, the free end of the paper web is again attached to the mandrel, the knife 51 brought into engagement therewith and the next barrel proceeded with in the manner described for the one just completed.

It clearly appears from the foregoing description of the invention in its preferred form, that the machine of this invention is capable of a much greater output than any machine heretofore proposed for producing the same articles, because of the fact that at the conclusion of the wrapping operation the barrel may be immediately removed without requiring further idle travel of the mandrel sections. This is a very important feature from a commercial standpoint since in all paper barrel machines heretofore made there is required, after the barrel is completed an additional retracting movement of the manmadam drel sections to a considerable degree, before the barrel can be released and removed from the machine. In the present invention the barrel can actually be removed While the mandrel sections are moving toward one another so that there need not be the slightest secession of operations of the machine to allow of the removal of the barrel. The out put of the machine is thus greatly increased and the wear and tear on the machine '1 also minimized by obviating the number of stops which are required for the machine to make during the completion of a barrel.

In the machine of this invention the man.-

=drel sections shown are those for making a tion 5 and paper feeding and cutting mechanism 50, moved to produce the helical convolutions during the winding of the container, without departing from this invention. I may further associate with the machine suitable revolution counters which will turn to count the convolutions of the paper strip and effect an automatic cut off thereof as well as an automatic shifting of the operating clutches. rrccordingly, the invention is not to be understood as restricted to the specific showing made since it is as broady novel as is commensurate with the appended claims.

Having thus fully described the invention, what I claim as new and desire to secure by Letters Patent is:

1. In a machine for wrapping hollow containers, a mandrel embodying a plurality of separable and rotatable sections supported on co-axial shafts extending from one and the same lateral face of the mandrel, means for rotating the mandrel, means for effecting movement of the mandrel sections toward and away from one another while the mandrel is being rotated, and means for feeding a web of paper to the mandrel, whereby at the completion of the wrapping operation, the finished container may he removed from the mandrel without requiring further separation of the mandrel sections.

2. In a machine for wrapping hollow containers, a mandrel embodying a plurality of separable and rotatable sections, co-axial shafts supporting said mandrel sections and extending from one and the same lateral face of the mandrel, means for rotating the mandrel, means for elfecting movement of the mandrel sections toward and a my from .one another while the mandrel is being rotated, and means for feeding a web of paper to the mandrel, whereby at the completion of the wrapping operation, the finished container may be removed from the mandrel without requiring further separation of the mandrel sections.

I 3. In a machine for wrapping hollow containers, a mandrel embodying a pair of separable and rotatable sections, one of which is supported on a hollow interiorly threaded shaft and the other of which is supported on an exteriorly threaded shaft passing through the hollow shaft and spaced therefrom, and a sleeve threaded exteriorly and :interiorly positioned co-axially of said shafts and. intermediate the same, in combination with means for rotating said shafts in unison to impart rotary movement to the mandrel, means for rotating the threaded sleeve at a different speed or in an opposite direction relative to the rotating shafts for the purpose of effecting movement of the mandrel sections toward and away from one another while said sections are being rotated. and means for feeding a paper web to the mandrel.

4. In a machine for wrapping hollow containers, a mandrel embodying a pair of sep arable and rotatable sections, and means eX-- tending from and positioned at one and the same side oi the mandrel for rotating said mandrel and effecting movement of said sections toward and away from one another while the mandrel is being rotated, in combination with means for feeding a web of paper to the mandrel, whereby, as soon as the wrapping operation is completed and the container finished, it may be withdrawn from the mandrel without requiring further separation of the mandrel sections.

5. In a machine for wrapping hollow containers. a mandrel embodying a plurality of separable and rotatable mandrel sections supported on and actuated by co-axial shafts extending from one and the same lateral face 01 the mandrel. a threaded sleeve co-axial with the shafts and operating with threads on said shafts. means for rotating said shafts and sleeve at a common speed to effect rotation of the mandrel sections without relative axial movement between them, and means for effecting rotation of the sleeve at a different speed than the speed of the shafts, for the purpose of moving the mandrel sections axially with respect to one another, in combination with means for feeding a web of paper to the mandrel.

6. In a machine for wrapping hollow containers, a mandrel embodying a plurality of separable sections, co-axial shafts extending from one and the same lateral face of the mandrel for supporting and actuating the sections thereof, means cooperating with the shafts for imparting relative axial movement thereto, a prime mover, and clutch mechanism for transmitting the power of the prime mover to impart simple rotation to the shafts and to effect relative longitudinal movement between said shafts While they are being rotated, in combination with means for feeding a web of paper to the mandrel.

7. In a machine for wrapping hollow con tainers,amandrel embodying a pair of separable sections, one of which is supported on a hollow interiorly threaded shaft and the other of which is supported on a coaxial exterior-1y threaded shaft passing through the hollow shaft and spaced therefrom, an interiorly and exteriorly threaded sleeve coaxial of said shafts and extending betwecn the same, a prime mover, means for driving said shafts and sleeve at a. common speed from the prime mover to impartrotation. to the mandrel without effecting relative movement between its sections, and means for rotating the sleeve at a different speed from the shafts to effect relative axial movement between the sections of the mandrel, in combination with means for feeding a paper web to the mandrel.

8. In a machine for wrapping hollow containers, a mandrel embodying a pair of separable sections, a hollow interiorl v threaded shaft supporting one of said sections and journaled for rotaiw and. sliding movement, an exteriorly threaded shaft supporting the other section and passing through the hollow shaft in coaxial relation therewith, both of said shafts being keyed together for simultaneous rotation and the inner shaft being journaled for rotary and sliding movement, an interiorl and exteriorly threaded sleeve co-axial with said shafts and positioned between them for operation at the same or different speeds from said shafts, which sleeve is mounted for rotation but fixed against longitudinal movement, a prime mover, means for rotating said shafts from the prime mover, clutch mechanism for rendering the sleeve rigid between the shafts for simultaneous rotation therewith for the purpose of effecting rotation of the mandrel without relative movement between its sections, additional clutch mechanism operable to rotate the separable combination with means for delivering a paper web to the mandrel.

9. In a machine for wrapping hollow containers, a mandrel embodying a pair of sections, a hollow interiorly threaded shaft supporting one of said sections and journaled for rotary and sliding movement, an exteriorly threaded shaft sup: porting the other section and passing through the hollow shaft in co-axial relation therewith, both of said shafts being keyed together for simultaneous rotation and the inner shaft being journaled for rotary and sliding movement, an interiorly and exteriorly threaded sleeve coaxial with saitl shafts and positioned between them for operation at the same or diflerent speeds from said shafts, which sleeve is mounted for rotation but lixed against longitudinal movement a prime mover, means for rotating said shafts from the prime mover. clutch mechanism for rendering the sleeve rigid between the shafts for simultaneous rotation thermvith for the purpose of effecting rotation of the mandrel without relative movement between its sections, additional clutch mechanism operable to rotate the sleeve at a di'lferent speed from the speed. of the shafts to effect longitudinal relative 'movcment between the mandrel sections, in combination with means for delivering a paper web to the mandrel, and means for periodically operating said clutches in accordance with the position of the mandrel sections and the amount of paper wound thereon to effect an automatic operation of the machine.

10. A machine for wrapping hollow containers, a mandrel embodying a pair of separable sections, supported on and actuated by coaxial shafts extending from one and the same lateral face of the mandrel, a member for controllinglongitudinal movement between the mandrel supporting shafts. a prime mover. clutch mechanism for effecting the simultaneous rotation of the shafts and shaft controlling member for the purpose of rotating the mandrel without imparting relative movement to its sections, clutch mechanism for rotating the shaft controlling member independently of the shafts for effecting relative movement between the mandrel sections, while the mandrel is rotated and means operable in time relation to the operations of the machine for operating said clutch mechanism in time sequence in combination with means for feeding a web of paper to the mandrel.

In testimony whereof, I have signed my name to this specification.

MAX D. BARON.

It is hereby certified that the name of the assignee in Letters Patent No.

1,358,610, granted November 9, 1920, upon the application of Max D. Baron, of

New York, N. Y., for an improvement in "Machines for Making Hollow Receptacles, was erroneously written and printed as Whitteman Brothers, whereas said name should have been written and printed as Witteman Brothers, as shown by the record of assignments in this office; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Ofliiie.

Signed and sealed this 7th day of December, A. D., 1920.

[SEAL] L. B. MANN,

Acting Commissioner of Patents. C1. 9380. 

